* {
	margin: 0;
	padding: 0;
	list-style: none;
}

#header_slogan {
	width: 35vw;
	height: 40vh;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
	font-size: 70px;
	color: white;
	position: absolute;
	left: 30%;
	top: 60%;
	z-index: 3;
	user-select: none;
}
#header_slogan > div {
	position: relative;
	width: 100%;
	height: 30%;
	overflow: hidden;
}

#header_slogan > div > p {
	width: 100%;
	height: 90%;
	line-height: 100%;
	position: absolute;
	top: 100%;
	opacity: 0;
}

#body {
	width: 100vw;
	z-index: 3;
	background-color: rgb(243, 243, 243);
}

#concept {
	width: 100vw;
	height: 180vh;
	position: relative;
	z-index: 4;
}

.carousel_template {
	width: 50vw;
	height: 70vh;
	position: absolute;
	top: -10vh;
	left: 50%;
	transform: translateX(-50%);
	background-color: rgb(255, 255, 255);
}
.carousel_template_introduce {
	position: absolute;
	width: 80%;
	height: 60%;
	top: 30%;
	left: 15%;
	z-index: 10;
	/* display: none; */
}

.carousel_template_introduce > span:nth-of-type(1) {
	font-size: 60px;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.carousel_template_introduce > p:nth-of-type(1) {
	font-family: '宋体';
	font-size: 38px;
	/* text-indent: 2rem; */
	font-weight: 200;
}
.carousel_template_introduce > p {
	width: 70%;
	font-size: 20px;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
	margin-top: 1vh;
	margin-bottom: 8vh;
	line-height: 4vh;
	font-weight: 100;
}

.carousel_template_img {
	position: absolute;
	left: 50%;
	bottom: -3vw;
	transform: translate(-50%);
	width: 50vw;
	height: 60%;
}

.carousel_template_box {
	width: 50vw;
	height: 100%;
	overflow: hidden;
}

.carousel_template_img_display {
	position: relative;
	width: 500%;
	height: 100%;
	left: -100%;
}

.carousel_template_img_display > img {
	width: 50vw;
	height: 100%;
}

.arrow_group {
	width: 6vw;
	height: 3vw;
	position: absolute;
	overflow: hidden;
	left: -3vw;
	bottom: 0;
}

.arrow_group_left,
.arrow_group_right {
	width: 3vw;
	height: 3vw;
	position: absolute;
	overflow: hidden;
	background-color: white;
}

.arrow_group_left {
	left: 0;
}

.arrow_group_right {
	right: 0;
}

.left_tempalte,
.right_tempalte,
.left_tempalte_bg,
.right_tempalte_bg {
	width: 3vw;
	height: 3vw;
	display: inline-block;
	font-size: 18px;
	text-align: center;
	line-height: 3vw;
	cursor: pointer;
	position: absolute;
	z-index: 20;
	top: 0;
}

.left_tempalte_bg,
.right_tempalte_bg {
	background-color: rgb(243, 243, 243);
	left: -3vw;
	z-index: 19;
}

#concept_about {
	width: 100vw;
	height: 200vh;
	padding-top: 20vh;
	position: relative;
	background-color: white;
}

#concept_about > .concept_about_item {
	width: 100%;
	position: relative;
	display: flex;
	justify-content: center;
	overflow: hidden;
}
#concept_about > .concept_about_item > div {
	width: 25%;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	justify-content: center;
	/* background-color: lightcoral; */
	overflow: hidden;
}
#concept_about > .concept_about_item:nth-of-type(1) > div > p {
	width: 100%;
	margin-left: 100%;
}

#concept_about > .concept_about_item > img {
	position: relative;
	top: 600px;
	/* margin-top: 100%; */
}

#concept_about > .concept_about_item:nth-of-type(2) > div > p {
	width: 100%;
	margin-left: -100%;
}

#concept_about > .concept_about_item > div > p:nth-of-type(2) {
	color: #080a15;
	font-size: 1.2rem;
	line-height: 2rem;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
#concept_about > .concept_about_item > div > p:nth-of-type(1) {
	font-size: 50px;
	font-weight: 300;
	margin-bottom: 5vh;
}
#concept_about > .concept_about_item:nth-child(2) {
	margin-top: 30vh;
}

.dot_group {
	position: absolute;
	width: 2vw;
	/* background-color: white; */
	right: 0.5vw;
	top: 50%;
	transform: translateY(-50%);
}

.dot_group > ul {
	width: 100%;
	height: 30vh;
	display: flex;
	flex-direction: column;
	justify-content: space-around;
	align-items: center;
}

.dot_group > ul > li {
	width: 0.3vw;
	height: 2.5vw;
	/* border-radius: 20%; */
	background-color: white;
	opacity: 0.4;
	transition: all 0.2s;
	cursor: pointer;
}

.dot_group > ul > li:hover {
	width: 0.4vw;
	opacity: 1;
}
